数组中的一个元素循环加一个指定的数？

Question

数组中的一个元素循环加一个指定的数
比如

把wifimac和wanmac都循环加4

Answer 1

<?php $arr = array( array( 'check' => 0, 'wifimac' => 1, 'wanmac' => 2 ), array( 'check' => 3, 'wifimac' => 4, 'wanmac' => 5 ) ); array_walk_recursive($arr, function (&$value, $key) { if($key == 'wifimac' || $key == 'wanmac') { $value += 4; } }); var_dump($arr);

Answer 2

直接foreach循环遍历不就可以了么？

Answer 3

<?php $data = [ [ 'wifimac' => 1, 'wanmac' => 3 ], [ 'wifimac' => 333, 'wanmac' => 32432 ] ]; foreach ($data as &$item) { $item['wifimac'] += 4; $item['wanmac'] += 4; } print_r($data); output: Array ( [0] => Array ( [wifimac] => 5 [wanmac] => 7 ) [1] => Array ( [wifimac] => 337 [wanmac] => 32436 ) )